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Finding the Fourth Proportional to 13,461.59, 18,576.99 and 7,493.13

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Solution

The fourth proportional to 13,461.59, 18,576.99 and 7,493.13 is: 10,340.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.59 : 18,576.99 = 7,493.13 : x
  2. Step 2: Convert to fraction form
    13,461.59/18,576.99 = 7,493.13/x
  3. Step 3: Cross multiply
    13,461.59x = 18,576.99 × 7,493.13
  4. Step 4: Simplify right side
    13,461.59x = 139,199,801.08
  5. Step 5: Solve for x
    x = 139,199,801.08/13,461.59
  6. Step 6: Final answer
    x = 10,340.52

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.